【单选题】During working of an air compressor, _____ should be drained .
【单选题】Jane’s brother’s _______ an American company. [ ]
【简答题】提出“相对论”的科学家是( )此题出自2015年辽宁丹东中考历史真题及答案,辽宁省丹东市2015年中考历史试题 提出“相对论”的科学家是( ) A.牛顿 B.哥白尼 C.达尔文 D.爱因斯坦
【单选题】From the research conducted by the communication provider Inter-Tel, we learn that______.
A.
attitudes toward IT technology have changed
B.
more employees work to full capacity at home
C.
more businesses have adopted remote working solution
D.
employees show a growing interest in small businesses
【单选题】脚部单一击打 训练是滚龙连厢 , ()互动性较强的击打训练组合。
【单选题】苯环是指()
C.
1900~1650cm -1 ;1300~1000cm -1
D.
3750~3000cm -1 ;1300~1000cm -1
E.
3300~3000cm -1 ;1675~1500cm -1 ;1000~650cm -1